Continuous-drying machine.



J. BLACK & A. H., H. 6; A. B. LENNOX.

CONTINUOUS DRYING MACHINE.

APPLICATION FILED DEC. 29, 1908.

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J. BLACK & A. 'H.,'"H. & A. B. LENNOX. CONTINUOUS DRYING MACHINE. APPLICATION PIVLED DEC. 29, 1908.

921,351. Patented 11,1909.

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CONTINUOUS DRYING MAGHINE.

APPLICATION TILED DEC. 29, 1908- 9215351. Patented May 11, 1909.

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the framing 12 mounted on sai UNITED STATES PATENT oEEroE.

JAMES BLACK, ALLISON HALL LENNOX, HAROLD LENNOX, AND ALLISON BELL LENNOX, OF

' NEWGASTLE-UPON-TYNE, ENGLAND.

CONTINUOUS-DRYING MACHINE Specification of Letters Patent.

Patented May 11, 1909.

Application filed December 29, 1908. Serial No. 469,865.

w of En 'land, residing at Newcastle-upon- Tyne, orthumberland, in England, have invented certain new and useful Improvements in Continuous-Drying Machines, of which the following is a specification.

continuous drying machines for drying grain, peat, hops, salt, sand, cement, manures,

gous wet or moist materials.

The machine consists of a fixed circular metallic casing of suitable diameter and capacity for the quantity of material to be which is driven in any suitable manner.

A preferred embodiment of the im roved ings in which Figure 1 is a sectional elevation thereof; Fig. 2 a plan view partly in section on the line A-A of Fig. 1 Figs. 3to 8 are diagrammatic mgs therein and deflecting partitions adja line B-B of Big. 8 showing the discharge spout; Fig. 10 is a plan view of Fig. 9; Fig. 11 is a section on the line CC of Fig. 3;

Fig. 2; Fig. 14 is a partial vertical section showing an alternative method of constructcasing; also an alternative method of attaching the scrapers to rings fixed on the central shaft and completing the inner cylinder by metallic sheeting and Fig. 15 is a section on the line FF of Fig. 14.

The fixed metallic casing 2 is composed of a series of cylinders with top and bottom flanges and contains within same the revolving cylinder 3 fixed to the central shaft 4, the

lower end of which carries a worm-wheel 5,

in mesh with a worm 6 mounted on the driving shaft 7 provided with fast and loose pulleys 8. The shaft 7 is carried in bearings 9 on the bed fplate 10 which also carries the bearings or oot-step 11 for the lower end of the shaft 4. The casing 2 is supported by ed plate 10. The shelves 13, 14, 15, 16, 17 and 18 are fixed between the flanges of the cylinders forming the casing and are made of any convenient number of parts, those shown in in the drawings (higs. 3 to 8) being of four parts. 19 designates the bottom plate of the casing 2 and 20 the top frame thereof which also forms the upper bearing for the v j central shaft 4, and above which are placed This invention relates to improvements 1n 1 the cover plates 21. The inner cylinder 3 is 5 tom respectively, these ends being Med to chemicals, small coal, ores, and other analoand revolving with the shaft 4 and in the drawings being shown as closed above and I open below. In figs. 1 and 2 the cylinder 3 4 is shown as carrying the scrapers 24 fixed g thereto said scrapers being slightly curved at dried in a given time, and of a revolving inner vertical cylinder concentric with the i fixed casing and connected to a central shaft i an aperture 25 for reception of the material i to be dried which passes on to the topmost .gshelf and in the course of its treatment machine is represented m the annexe drawf their inner and outer ends.

One of the cover plates 21 is provided with passes through the holes 26, 27 28, 29 and f chute 31 into any suitable receptacle, said plan views of the shelves showing the openspout being provided with a hinged door 32.

iAdjacent each of the holes in the shelves cent said openings; Fig. 9 is a section on the i are the hinged deflecting partitions 3, 34,

from a cover plate 21 and from the she ves 13, 14, 15, 16 and 17 respectively, suitable Fig. 12 is a section on the line DD of Fig. 11; Fig. 13 is a section on the line EE of provision being provided on said cover plate and shelves for attaching same. 40 indi cates the spreaders adjustably fixed to the casing 2 in the positions previously described. ing the shelves, and attaching same to the The heat supply such as hot air or gases may enter at the point 41 shown at the side of the casing 2.

In the modification shown in Figs. 14 and 15 rings 42 carrying the scrapers 24 are shown as attached to the central shaft 4 the intermediate spaces being filled with metallic sheetin 43 to form the inner cylinder 3, and the she ves fit between the unflanged ends of the casing cylinders and are flanged outside said casing.

In Figs. 3 to 8 the arrows in solid lines show the direction of travel of the material and those in broken lines that of the hot air or ases.

series of open holes 44 in the inner cylinder 3 may be provided throu h which hot air or gases which pass up insi e said cylinder may escape to the spaces between thecomplete circuit of each shelf, meansfor the shelves.

We do not limit ourselves. to the exact construction and arrangement of parts hereinbefore described since the same may be varied within the scope of the follow' rg claims without. departing from the spirit of the invention.

hat we claim as our invention and desire to secure by Letters Patent of the United States is 1. A continuous drying machine comprising an outer casing, fixed shelves dividing said easing into a series of superposed coinpartments and each provided with a differently positioned aperture, a revoluble central cylinder within the casing, scrapers rotating in conjunction with said cylinder whereby the material is discharged from one shelf to the next below through the apertures therein after having made a substantialiy complete circuit of each shelf, means for the supply of a heating medium to the lower part of said casing, and deflecting plates extending substantially frozn shelf to shelf adjacent the discharge aperture therein for deflecting the drying medium through each of said compartments in a direction con trary to the movement of the scrapers.

2. A continuous drying machine comprising an outer casing constructed of a series of superposed cylinders, shelves, fixed between adjacent pairs of said cylinders, dividing said casing into a series of superposed conipartmentsand each provided with a differently positioned aperture, a revoluble central cylinder within the casing, scrapersrotating in conjunction with said cylinder whereby the material is discharged from one shelf to the next below through the apertures therein after having made a substantially supply of a heating medium to the lower part of said casing, and deflecting plates extending substantially from shelf to shelf adjacent the discharge aperture therein for deflecting the drying medium through each of said compartments in a direction contrary t0 the movement of the scrapers.

3. A continuous drying machine comprising an outer casing, a cover plate for said casing, fixed shelves. dividing said casing into a series of superposed compartments and each provided with a differently posi tioned' aperture, a revo-luble central cylinder within the casing, scrap-311's rotating in co11- junction with said cyder whereby the material is discharged from one shelf to the next below through the apertures therein after having made a substantially complete circuit of each shelf, means for the supply of a heating medium to the lower part of said casing and deflecting plates hinged to the cover plate aforesaid and to the lower surfaces of the respective. shelves, said plates extending substantially from shelf to shelf adjacent; the discharge aperture. therein for deflecting the drying inedium through each of said compartments in a direction contrary to the movement of the scrapers.

In witness whereof we have signed this specification in the presence of two witnesses.

JAMES BLACK.

ALLISON HALL LEN NOX. HAROLD LENNOX. ALLISON BELL LENNOX.

Witnesses:

NORMAN MCDONALD, CHARLEs STEPHEN GARDNER. 

